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UNITED STATES CHARLES E. BARBER, or sYRAcUsE, NEW Yoan.

SPECIFICATION forming part of Letters Patent No. 274,551, dated March 27, ieee.

Application filed November 21, 18'82. (No model.)

To all whom it may concern:

Be it known that l, CHARLES E. BARBER., of Syracuse, in the county of Onondaga,in the State of New York, have invented new and useful Improvements in Pumps, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to the arrangement of the valves of double-acting force-pumps, the object of the invention being to obtain more convenient and ready access to the said valves for repairs or renewal; and it consists in the peculiar construction and combination, with the pump-cylinder, of the induction and eduction passages and the resultant arrangement of the valves ofthe same, as hereinafter more fully described, and specifically set forth in the claim.

Referring to the accompanying drawings, Figure lis a top view of a double-acting forcepump provided with my improvements, the cap being removed to show the position of the ports and valves. Fig. 2 is a vertical longitudinal section on line a' a', and Fig. 3 a vertical transverse section on line y y.

Similar letters of reference indicate correspending parts. 4

O represents the pump-cylinder, provided at opposite sides of its two ends with the usual water induction and eduction ports. Along the exterior of the cylinder, respectively at opposite sides thereof, are extended two vertical walls, w, leaving a space between them and the cylinder. On one side of the cylinder the aforesaid space is divided into a central chamber, A, and two passages, B B, at opposite ends of said chamber, and separated therefrom by vertical partitions d d, as shown iu Fig.2 of the drawings, the central chamber, A, being` tapped by the ind notion-pipe P, and the passagesBB communicating', respectively,with opposite ends of the cylinder. 0n the opposite side oi' the cylinder` C the space between it and the wall lw is similarly divided into a central chamber, D, and two passages, E E, separated from the chamberl) by vertical partitions c c, and communicating with the ends of the cylinder C, the central chamber, D, being tapped bythe eduction-pipe R. Over the aforesaid chambers and passages is extended a plate, which is provided with ports a a, di'

i,rectly over the passages B B, and with a port,

b, over the eduction-chamber D.

n o and c o represent puppet-valves seated iu ports in the top plate, N, respectively over the induction-chamber A and over the eductionipassages E E, as best seen in Fig. l of the drawings.

E represents the cap mounted on the plate N, and secured in position by means of bolts in the usual manner, said cap being formed with a cavity on its under side, extending over the above-described ports and valves, and provided with a longitudinal partition, j', which separates the issuing water from the entering` Water. A transverse partitiou,g,ex tended across that portion of the cavity of the cap which is over the induction-ports a and valves c, separates the two ingresses of water to opposite ends of the cylinder, Ithe position of the aforesaid partitions being indicated by the dotted lines o o in Fig. 1 of the drawings.

The operation of my improved pump does not diiermateriall y from that ofother force-pumps, and is as follows: 4The reciprocating pump-piston produces a vacuum at that end ofthe cylinder from which it recedes, and in the passage B adjacent thereto, and also in that portion of the cavity of the cap F which is directly over said passage. This vacuum draws down and closes the valve o on the opposite side of the cylinder, and lifts the valve 'U from the top plate, N, and causes the water to iiow into the vacant end of the cylinder. Simultaneously with this action the piston approaching the opposite end of the. cylinder expeis therefrom the water which bythe previous reverse movement of the piston had entered thereat in the same manner as before described. The pressure on the water forces a portion thereof up into that portion of the cavity of the capFwhich is over the valve l@,and thus presses said valve down upon the top plate, N. rlhe valve n at the opposite side of the cylinder receiving the waterpressure from the under sideisforced from its passage E into the eduction-pipe R.

It will be observed that by the peculiar construction of the removable cap F, having -a cavity formed into water-passages by the longitudinal partition j' and transverse partition g, and joined with the top plate, N, having all the valves c Iv, o and n seated upon it in the seat and allo w s th e water to escape through thev on one side of the cylinder, the chamber D and passagesE E on the oppositesideof the cylinder, the top plate, N, provided with ports a a and b, the valves c v, c and c seated upon said top plate, and the cap F, mounted removably on the top pla-te,N, and formed with a cavity on its under side, and with partitions fand g in said. cavity, all constructed and combined substantially in the manner and for purpose shown and set forth.

In testimony Whereofl have hereunto signed my name and afxed my seal,in the presence of two attesting Witnesses, at Syracuse, in the countyot' Onondaga,in the Stateof NewYork, this 25th day of October, 1882.

CHARLES E. BARBER. [14.5.1

Witnesses: Y

WM. G. RAYMOND, C. BRNDIXON.A 

